查询词典 power grid

By building the low frequency model of the system, in the rectifying mode and regenerating mode, the dynamic adjusting procedure of realization for unity power factor, absorbing or regenerating capacitive reactive power, inductive reactive power from or to power grid are investigated.

通过建立系统低频数学模型，分别在顺变和逆变状态下，探讨系统实现单位功率因数、从电网吸收或回馈容性、感性无功功率的动态调节过程。

Trade mode partrecites the operation model power transmission market and detailedly discusses theprice system of power transmission market; on the basis of electrovalence system ofpower transmission, it calculates and analyses province-stridden power transmissionexpenses combining the actualities of countrywide provincial trade and the actualcircumstances of provincial power transmission of middle-Chinese power grid; itrelates to the mode of big power consumers directly purchasing electricity andfinance instrument of power transmission market.

交易模式部分中叙述了输电市场的运营模式，对输电市场的价格体系做了详实的论述和相应的探讨；在输电电价体系的基础上，结合全国省间交易的现状和华中电网跨省输电的实际，对跨省输电费用进行了相关的测算和分析；涉及了大用户直购电模式和输电市场的金融工具。

LED High Power DownLight,LED Hight Power Track Light,LED High Power Ceiling Light,LED high Power Wall Lamp,LED Hight Power Grid Lamp,LED Flood Light,LED High Power Wall Washing Light,LED High Power Under Ground Light,LED High Power Under Water Light,LED Table Lamp,LED High Power Street Light,All Kinds of LED Light.

成功研制生产的大功率LED筒灯、LED泛光灯、LED吸顶灯、LED豆胆灯、LED横灯等产品，因其可靠的质量和性能远销到欧洲、北美洲、及亚洲国家。公司产品全面通过CE认证，在设计、生产、和服务过程中严格实施标准化管理和控制。

Firstly, the background and the significant of the research is discussed, modern software engineering and its development is also outlined, and the present states and the reason of using the modern software engineering in power systems are also analyzed. Secondly, related theories and methods of the modern software engineering are systematically given in details, which establish the basis of the software development with the software engineering in power systems. Thirdly, the necessity of the developed power system software with the software engineering is analyzed deeply and the key techniques in carrying out the software development with the software engineering are discussed. Based on these, a concrete approach about the software development with the software engineering is proposed. And then, the software design process of 'GPS synchronous monitoring system of Hunan power grid'is given to demonstrate the utilization of the approach proposed. Subsequently, quality and efficiency of the software is analyzed, which indicates the validity of the method used. At last, the main work and fruitage of the thesis is concluded, and the further research is also pointed out.

论文首先论述了课题研究的背景和意义，概述了现代软件工程及其发展，分析了现代软件工程在电力系统中的应用现状及其原因；然后系统地阐述了现代软件工程的相关理论和方法，奠定了电力系统软件工程化开发的理论基础；接着分析了电力系统软件工程化开发的必要性，探讨了实施工程化开发涉及到的关键技术，结合现代软件工程的理论和方法，提出了一种电力系统软件工程化开发的具体方法；之后以湖南电力系统状态GPS 同步监测系统软件的开发为例，详细地阐述了该工程化方法在电力系统软件开发中的具体实践过程，并分析了软件开发的结果，指出了该方法是解决软件开发质量和效率问题的有效途径；论文最后对主要工作和成果进行了总结，并指出了有待进一步开展的工作。

Firstly, the transient stability of the modes by which some kinds of huge power suppliers are connected with AC power grid is analyzed and compared in detail; then a detailed transient stability simulation of a certain large-scale demonstration system is performed; finally some helpful conclusions are obtained: in the general situation, the bundling power transmission mode is favorable to increase the stability of sending system; if it is helpful to evidently increase the inertia of the equivalent leading group, the mode that connects the huge power supplier with sending system will be helpful to enhance the stability of sending system, however it is necessary to perform simulation and analysis while these principles are applied to FACT systems.

首先从机制上对几种大电源接入交流系统方式的暂态稳定性进行了详细的分析和比较；然后对大型算例系统进行了详尽的暂态稳定仿真；最终得出了一些有用的结论：一般情况下，打捆送电方式有利于提高送出系统的稳定性；如果有助于显著增加领前群的惯量，则与送端系统相联的方式也有助于提高送电系统的稳定性，但仍要结合具体系统进行分析。

The electric power generated by pithead power plants in Mongolia will be transmitted to load center of North China power grid, i.e., Beijing―Tianjin―Tangshan area, through China-Mongolia HVDC project. The isolated island operation mode is used for the AC power system at the sending end of HVDC system.

蒙古煤电资源通过中蒙直流输电工程直接送往我国华北电网京津唐负荷中心地区，直流输电系统送端采用"孤岛"运行方式。

Grid connected wind power generation has become main technology because of compensation and sustentation from large power grid.

并网运行的风力发电由于可以得到大电网的补偿和支撑，成为风力发电的主流。

In additon,$30 billion will go to smart power grid, advanced battery technology and energy efficiency measures including the Smart Grid Investment Program to modernize the electricity grid to make it more efficient and reliable, U.S.

当然也有为提供5亿美元使得在 DOD 技能上去的进步的条款，包括部队建筑和大约4.5亿美元建造国家办公建筑这样更多的能源效益，目的是为了长期实现为缴税者节省金钱。

By means of analyzing the variation of operation parameters of Shanxi power grid such as voltage and frequency, the possible affects of fault trip of 1000kV transmission line on Shanxi power grid are summarized; and according to concrete situation of 1000kV transmission line, some corresponding control measures are put forward.

研究了1 000 kV线路故障跳闸后山西电网的运行情况，通过对山西电网的电压、频率等电气量变化情况的分析，总结出1 000 kV线路故障跳闸对山西电网可能造成的影响，并结合1 000 kV线路的具体情况，提出了有针对性的控制措施。

A Geomagnetic storm is possible to induce geomagnetically induced current and many illeffects in high-voltage power grid. Detail studies about the distribution, amplitude and effects of GIC in power grid are very important.

__ |a 地磁暴在高压电网中产生的地磁感应电流(Geomagnectically-induced current，简称GIC)对电力系统运行可能造成一系列有害影响，深入地研究其在电网中的分布、大小及影响等问题有重要意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。